Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Sinus parasystole.

G Satullo1, G Oreto, F Luzza

  • 1Istituto Pluridisciplinare di Clinica Medica, Università di Messina, Italy.

American Heart Journal
|May 1, 1991
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Heart disease and heart failure: Trends and disparities in mortality rates in the United States from 2000 to 2020.

American heart journal plus : cardiology research and practice·2024
Same author

<i>Encephalitis lethargica</i>. What is still wrong?

International journal of immunopathology and pharmacology·2023
Same author

Quality of endoscopic screening for colorectal cancer in Italy: A national survey.

Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver·2022
Same author

The Apparent Asymmetrical Relationship Between Small Bowel Bacterial Overgrowth, Endotoxemia, and Liver Steatosis and Fibrosis in Cirrhotic and Non-Cirrhotic Patients: A Single-Center Pilot Study.

Frontiers in medicine·2022
Same author

Shingles: a harbinger of chronic HIV infection.

Journal of community hospital internal medicine perspectives·2021
Same author

The role of gluten-free diet in nonalcoholic fatty liver disease development.

European review for medical and pharmacological sciences·2021
Same journal

Moving Beyond Technical Capability to Regulatory Integration for Digital Health Technology Devices-Brief Communication from the Cardiovascular Sciences Research Consortium.

American heart journal·2026
Same journal

THE SOCIETY OF CRITICAL CARE CARDIOLOGY - RATIONALE, BLUEPRINT, AND LESSONS LEARNED IN THE CREATION OF A NEW MULTIDISCIPLINARY PROFESSIONAL ORGANIZATION.

American heart journal·2026
Same journal

DOAC Score Among Patients Receiving Vitamin K Antagonists.

American heart journal·2026
Same journal

Considerations for Using Atrial Fibrillation Burden as a Surrogate Endpoint A Report from the Cardiovascular Sciences Research Consortium.

American heart journal·2026
Same journal

Prognostic Impact of Combined Inflammatory Markers in Patients Undergoing Percutaneous Coronary Intervention.

American heart journal·2026
Same journal

The Association of Single Ventricle Morphology with Long Term Quality of Life Among Survivors: A Report from CHD PULSE (Congenital Heart Disease Project to Understand Lifelong Survivor Experience).

American heart journal·2026
See all related articles

Sinus parasystole involves a protected, independent sinus pacemaker. This condition has active and passive forms, with distinct diagnostic challenges and recognition patterns.

Area of Science:

  • Cardiology
  • Electrophysiology

Background:

  • Sinus parasystole is a rare cardiac arrhythmia.
  • It arises from a protected, nondominant sinus pacemaker independent of the dominant rhythm.

Observation:

  • Two forms exist: active (both pacemakers in sinus node) and passive (ectopic rhythm with retrograde SA block).
  • Active form presents with identical P waves, making diagnosis difficult and mimicking sinus arrhythmia.
  • Passive form is easier to diagnose due to distinct P wave morphologies.

Findings:

  • Diagnosis of active sinus parasystole relies on variably coupled premature sinus P waves with mathematically related intervals.
  • Complicating factors like modulation can affect interval precision.
  • Passive form shows clear differences between ectopic atrial waves and sinus P waves.

Related Experiment Videos

Implications:

  • Accurate diagnosis of sinus parasystole is crucial for understanding complex arrhythmias.
  • Distinguishing between active and passive forms aids in appropriate clinical management.
  • Further research may elucidate the clinical significance and long-term prognosis of this condition.